{"id":"vidhyamitra:city-day:rishikesh:1955-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1955-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1955-10-01","date_display":"October 1, 1955 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1955,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435381.770833,"kali_year":5057,"ahargana":1846916.2708,"sun":{"sidereal_longitude":163.2145,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":332.3707,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.1562,"elapsed_within_tithi_degrees":1.1562},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":332.3707,"elapsed_within_degrees":12.3707},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":135.5852},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":1955,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2435381.770833,"ahargana":1846916.2708,"kali_year":5057,"ayanamsa_lahiri":23.2348,"grahas":{"sun":{"sidereal_longitude":163.85256500000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":333.996265,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false,"latitude":4.4995},"mars":{"sidereal_longitude":149.44026499999995,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":186.261165,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":119.84356500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":172.457765,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":205.62916500000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":241.488,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":61.488,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1955,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435381.770833,"kali_year":5057,"ahargana":1846916.2708,"sun":{"sidereal_longitude":163.2145,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":332.3707,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.1562,"elapsed_within_tithi_degrees":1.1562},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":332.3707,"elapsed_within_degrees":12.3707},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":135.5852},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.499,"elongation":169.156},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.499,"opposition_distance":10.844}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:08","sunsetLocal":"18:03","solarNoonLocal":"12:06","dayLengthHours":11.911044644022938,"dayLengthDisplay":"11 Hours 54 Mins 40 Secs","nightLengthDisplay":"12 Hours 05 Mins 20 Secs","moonriseLocal":"17:26","moonsetLocal":"05:26","rahuKala":{"name":"Rāhu Kāla","start":"09:07","end":"10:36","startHours":9.118269435884523,"endHours":10.60715001638739,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:35","end":"15:04","startHours":13.584911177393124,"endHours":15.073791757895993,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:08","end":"07:38","startHours":6.140508274878789,"endHours":7.629388855381656,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:19","startHours":8.919752025150807,"endHours":9.316786846618239,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.636801801713077,"endHours":6.9544296588870225,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:30","startHours":11.698995775422828,"endHours":12.49306541835769,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:33","end":"05:21","startHours":4.5523689890090635,"endHours":5.346438631943926,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:08","startHours":5.14792122121021,"endHours":6.140508274878789,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:53","startHours":14.081204704227414,"endHours":14.875274347162277,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:51","end":"18:15","startHours":17.851552918901728,"endHours":18.251552918901726,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:03","end":"18:33","startHours":18.051552918901727,"endHours":18.547846445736017,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:48","end":"19:33","startHours":17.801552918901727,"endHours":19.551552918901727,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:30","startHours":23.698995775422826,"endHours":24.49306541835769,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:08","end":"07:38","startHours":6.140508274878789,"endHours":7.629388855381656,"quality":"inauspicious"},{"name":"Śubha","start":"07:38","end":"09:07","startHours":7.629388855381656,"endHours":9.118269435884523,"quality":"auspicious"},{"name":"Roga","start":"09:07","end":"10:36","startHours":9.118269435884523,"endHours":10.60715001638739,"quality":"inauspicious"},{"name":"Udveg","start":"10:36","end":"12:06","startHours":10.60715001638739,"endHours":12.096030596890259,"quality":"inauspicious"},{"name":"Chala","start":"12:06","end":"13:35","startHours":12.096030596890259,"endHours":13.584911177393124,"quality":"neutral"},{"name":"Labha","start":"13:35","end":"15:04","startHours":13.584911177393124,"endHours":15.073791757895993,"quality":"auspicious"},{"name":"Amṛta","start":"15:04","end":"16:34","startHours":15.073791757895993,"endHours":16.562672338398862,"quality":"auspicious"},{"name":"Kāla","start":"16:34","end":"18:03","startHours":16.562672338398862,"endHours":18.051552918901727,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:03","end":"19:34","startHours":18.051552918901727,"endHours":19.56267233839886,"quality":"auspicious"},{"name":"Amṛta","start":"19:34","end":"21:04","startHours":19.56267233839886,"endHours":21.073791757895993,"quality":"auspicious"},{"name":"Kāla","start":"21:04","end":"22:35","startHours":21.073791757895993,"endHours":22.584911177393124,"quality":"inauspicious"},{"name":"Śubha","start":"22:35","end":"00:06","startHours":22.584911177393124,"endHours":24.09603059689026,"quality":"auspicious"},{"name":"Roga","start":"00:06","end":"01:36","startHours":24.09603059689026,"endHours":25.60715001638739,"quality":"inauspicious"},{"name":"Udveg","start":"01:36","end":"03:07","startHours":25.60715001638739,"endHours":27.11826943588452,"quality":"inauspicious"},{"name":"Chala","start":"03:07","end":"04:38","startHours":27.11826943588452,"endHours":28.629388855381656,"quality":"neutral"},{"name":"Labha","start":"04:38","end":"06:08","startHours":28.629388855381656,"endHours":30.14050827487879,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.140508274878789,"endHours":7.140508274878789,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.140508274878789,"endHours":8.140508274878789,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.140508274878789,"endHours":9.140508274878789,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.140508274878789,"endHours":10.140508274878789,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.140508274878789,"endHours":11.140508274878789,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.140508274878789,"endHours":12.140508274878789,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.140508274878789,"endHours":13.140508274878789,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.140508274878789,"endHours":14.140508274878789,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.140508274878789,"endHours":15.140508274878789,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.140508274878789,"endHours":16.14050827487879,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.14050827487879,"endHours":17.14050827487879,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.14050827487879,"endHours":18.14050827487879,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.14050827487879,"endHours":19.14050827487879,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.14050827487879,"endHours":20.14050827487879,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.14050827487879,"endHours":21.14050827487879,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.14050827487879,"endHours":22.14050827487879,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.14050827487879,"endHours":23.14050827487879,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.14050827487879,"endHours":24.14050827487879,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.14050827487879,"endHours":25.14050827487879,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.14050827487879,"endHours":26.14050827487879,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.14050827487879,"endHours":27.14050827487879,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.14050827487879,"endHours":28.14050827487879,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.14050827487879,"endHours":29.14050827487879,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.14050827487879,"endHours":30.14050827487879,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-2.812821684247434,"eotMinutes":11.167764186584405,"ayanamsa":23.2348}},"calendars":{"vikram_samvat":2012,"vikram_samvatsara":"Kīlaka","saka_samvat":1877,"saka_samvatsara":"Manmatha","bengali_samvat":1362,"malayalam_era":1131,"nanakshahi_year":486,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Pūrṇimā · Vikram 2012 Kīlaka · Śaka 1877 Manmatha"},"festivals":[{"id":"sharad-purnima","name":"Śarad Pūrṇimā / Kojāgarī Pūrṇimā","name_sanskrit":"शरद पूर्णिमा","tradition":"Vaishnava","associated_deity":"Krishna + Lakṣmī","significance":"Krishna's Mahā-rāsa with the gopīs at Vṛndāvana. Lakṣmī wakes (\"ko jāgartti?\")","vrata":true,"primary_observance":"Night-long jāgaraṇa; offering of pāyasa under moonlight","detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":2,"sources":["Bhāgavata 10.29-33"]},{"id":"rasa-purnima","name":"Rāsa Pūrṇimā (Vraja Mahā-Rāsa)","name_sanskrit":"रास पूर्णिमा","tradition":"Vaishnava","associated_deity":"Krishna + Gopīs","significance":"Krishna's Mahā-rāsa with the gopīs at Vraja (Bhāgavata 10.29-33). Same as Śarad Pūrṇimā but emphasized in Vraja tradition.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":2},{"id":"valmiki-jayanti","name":"Mahārṣi Vālmīki Jayantī","name_sanskrit":"महर्षि वाल्मीकि जयन्ती","tradition":"Pan-Hindu","associated_deity":"Maharṣi Vālmīki (ādi-kavi)","significance":"Composer of Vālmīki Rāmāyaṇa. Āśvina Pūrṇimā tradition.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":3},{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 1, 1955 CE · Ṛṣikeśa · Vidhyamitra","description":"October 1, 1955 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 06:08, sūryāsta 18:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1955-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1955-10-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/1955-10-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/1955-10-01","x-default":"https://vidhyamitra.com/city/rishikesh/1955-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T16:15:46.778Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-20T16:15:46.778Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T16:15:46.778Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}